Bacteriophages-Carbon Nanofibre Modified Electrodes for Biosensing Applications †
by
Katarzyna Szot-Karpińska
1,*, 
Damian Kwaśniewski
1,
Adam Leśniewski
1,
Frank Marken
2 and
Joanna Niedziółka-Jönsson
1 1
Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
2
Department of Chemistry, University of Bath, Bath BA2 7AY, UK
*
Author to whom correspondence should be addressed.
†
Presented at the 5th International Symposium on Sensor Science (I3S 2017), Barcelona, Spain, 27–29 September 2017.
Proceedings 2017, 1(8), 764; https://doi.org/10.3390/proceedings1080764
Published: 29 November 2017
(This article belongs to the Proceedings of Proceedings of the 5th International Symposium on Sensor Science (I3S 2017))
Carbon nanomaterials have aroused substantial interest in various research fields. Their uniqueness derives from their remarkable surface properties, good electrical conductivity and well developed surface. These properties make them suitable for application as elements in electrochemical sensors [1]. The improvement of their properties might be achieved via the application of viral particles which could change the surface and electrical properties of carbon nanomaterials. Recently, bacteriophage particles due to their unique properties (high active surface area, the ability to form self-assembled, periodically ordered, three-dimensional structures) have appeared as an interesting addition to electrochemical devices [2].
We show that utilization of these particles for modifying an electrode with carbon nanofibres (CNF) leads to the generation of a material with a highly developed surface and thus an electrode with a large active area which is desirable when preparing sensing platforms.
The obtained electrode was thoroughly characterized by SEM, AFM and cyclic voltammetry. Our results show that electroactive surface area is better developed when the bacteriophages are added to the CNF-based electrodes, than for bare electrodes, or those modified only with CNFs. Also, the electrocatalytic activity towards the oxidation of cysteine, homocysteine and gluthatione, is improved in the case of additional application of bacteriophages for CNF-based electrode modification.
Acknowledgments
This work was funded by the Polish National Science Centre via a FUGA grant (post-doctoral internship UMO-2012/04/S/NZ1/00039) to Dr. Katarzyna Szot-Karpińska. J.N.-J. and A.L. thank the Foundation for Polish Science under the FOCUS Programme/Grants 3/2010/Grants.
References
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- Janczuk, M.; Niedziolka-Jönsson, J.; Szot-Karpińska, K. Bacteriophages in electrochemistry: A review. J. Electroanal. Chem. 2016, 779, 207–2019. [Google Scholar] [CrossRef]
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MDPI and ACS Style
Szot-Karpińska, K.; Kwaśniewski, D.; Leśniewski, A.; Marken, F.; Niedziółka-Jönsson, J. Bacteriophages-Carbon Nanofibre Modified Electrodes for Biosensing Applications. Proceedings 2017, 1, 764. https://doi.org/10.3390/proceedings1080764
AMA Style
Szot-Karpińska K, Kwaśniewski D, Leśniewski A, Marken F, Niedziółka-Jönsson J. Bacteriophages-Carbon Nanofibre Modified Electrodes for Biosensing Applications. Proceedings. 2017; 1(8):764. https://doi.org/10.3390/proceedings1080764
Chicago/Turabian StyleSzot-Karpińska, Katarzyna, Damian Kwaśniewski, Adam Leśniewski, Frank Marken, and Joanna Niedziółka-Jönsson. 2017. "Bacteriophages-Carbon Nanofibre Modified Electrodes for Biosensing Applications" Proceedings 1, no. 8: 764. https://doi.org/10.3390/proceedings1080764
